BPM-Matlab

BPM-Matlab models electric field propagation in optical fibers, including bending, using the Douglas-Gunn Alternating Direction Implicit (ADI) finite difference method to simulate diverse fiber geometries and arbitrary refractive index profiles.

Key Features:

• Versatility: Handles a wide range of optical fiber geometries and arbitrary refractive index profiles, including bent fiber configurations.
• Numerical method: Implements the Douglas-Gunn Alternating Direction Implicit (ADI) finite difference method for beam propagation modeling.
• Computational performance: Uses the ADI finite difference approach to improve computational efficiency and numerical accuracy for complex structures.
• Validation: Performance and results have been compared with published experimental, numerical, and theoretical data and benchmarked against commercial software.

Scientific Applications:

• Imaging technologies: Simulates field propagation in fiber-based imaging systems to support fiber design and signal delivery analysis.
• Telecommunications: Models modal propagation and field evolution in optical fibers to inform fiber design and transmission performance studies.
• Material processing: Predicts field distributions in fibers used for laser delivery and processing applications.
• Remote sensing: Simulates propagation effects relevant to fiber-based sensing and signal collection systems.

Methodology:

Numerical simulations are performed using the Douglas-Gunn Alternating Direction Implicit (ADI) finite difference method to compute electric field propagation in optical fibers with arbitrary refractive index profiles and bending.